Again just not sure if I can buy into that and how audiences will see it either.

And Hulk wasn't really betrayed at all if you honestly think about it. Except by Miek.

He was initially betrayed by the Illuminati of Stark, Richards, Strange & Black Bolt when they tricked him into being sent off into space in the first place (Namor and Professor X didn't have any hand in that decision iirc).

Ironically, though they never intended to send him to Sakaar (he was meant to arrive on an uninhabited planet but something went wrong), if Miek had not allowed the ships damaged core to explode then the Hulk would have found happiness there.

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